Find the odds that a queen is not pulled from a full deck of cards

Question

Use the statement,

if p(E) = a/b, then o(E) = a:(b − a) and o(E') = (b − a):a,

to find the odds that a card dealt from a full deck (no jokers) is as stated.

not a queen

Answer 1

4 queens in 52 cards 4/52 = 1/13

12 out of 13 are not queens

Probability of not getting a queen = 12/13 = about 92.3%